1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55
56. 56
57. 57
58. 58
59. 59
60. 60
61. 61
62. 62
63. 63
64. 64
65. 65
66. 66
67. 67
68. 68
69. 69
70. 70
71. 71
72. 72
73. 73
74. 74
75. 75
76. 76
77. 77
78. 78
79. 79
80. 80
81. 81
82. 82
83. 83
84. 84
85. 85
86. 86
87. 87
88. 88
89. 89
90. 90
91. 91
92. 92
93. 93
94. 94
95. 95
96. 96
97. 97
98. 98

// SPDX-FileCopyrightText: 2024 Shota FUJI <pockawoooh@gmail.com>
// SPDX-License-Identifier: AGPL-3.0-only

import { openDB } from "idb";

import { CONTEXT } from "./symbols";
import { type Context, type RPCMessage } from "./types";
import { service } from "./yamori/service";

class IDBBackend {
	[CONTEXT]: Context;

	constructor(ctx: Context) {
		this[CONTEXT] = ctx;
	}

	handle(request: RPCMessage): Promise<Uint8Array> {
		return service(request, this[CONTEXT]);
	}
}

export async function idbBackend(): Promise<IDBBackend> {
	return new IDBBackend({
		db: await openDB("yamori", 4, {
			async upgrade(db, oldVersion, _newVersion, transaction, _event) {
				// v1
				if (oldVersion < 1) {
					const workspaces = db.createObjectStore("workspaces", {
						keyPath: "id",
					});

					workspaces.createIndex("updatedAt", "updatedAt", {
						unique: false,
					});
				}

				// v2
				if (oldVersion < 2) {
					const store = transaction.objectStore("workspaces");

					for await (const cursor of store.iterate()) {
						const deletionKey = new Uint8Array(16);
						self.crypto.getRandomValues(deletionKey);

						const updateKey = new Uint8Array(16);
						self.crypto.getRandomValues(updateKey);

						const workerAddKey = new Uint8Array(16);
						self.crypto.getRandomValues(workerAddKey);

						await cursor.update({
							...cursor.value,
							capabilities: {
								...cursor.value.capabilities,
								deletionKey,
								updateKey,
								workerAddKey,
							},
						});
					}
				}

				// v3
				if (oldVersion < 3) {
					const workers = db.createObjectStore("workers", {
						keyPath: "id",
					});

					workers.createIndex("workspaceId", "workspaceId", {
						unique: false,
					});

					workers.createIndex("updatedAt", "updatedAt", {
						unique: false,
					});
				}

				// v4
				if (oldVersion < 4) {
					const store = transaction.objectStore("workspaces");

					for await (const cursor of store.iterate()) {
						const createLeaveDefinitionKey = new Uint8Array(16);
						self.crypto.getRandomValues(createLeaveDefinitionKey);

						await cursor.update({
							...cursor.value,
							capabilities: {
								...cursor.value.capabilities,
								createLeaveDefinitionKey,
							},
						});
					}
				}
			},
		}),
	});
}